An excellent low-cost CO2 monitor (under $40) is the INKBIRD PTH-10C (see review here). My wife has also made a cheap homebuilt CO2 sensor for about $30 using Arduino technology (see instructions here ...

Indoor air quality measurements using a portable home sensor of good air quality (CO2 of 552 ppm) at a supermarket (left); not-so-great air quality (CO2 of 936 ppm) at a coffee break during the 2023 ...

This is a MH-Z19B / MH-Z19C CO2 sensor library for Arduino. It has been built from scratch to support hardware and software serial with a small footprint. The MH-Z19 is a NDIR (Non-Dispersive Infrared ...

What if you could take control of the air you breathe indoors, making sure a healthier and more comfortable environment for you and your loved ones? With indoor air quality directly impacting ...

The documentation is an adjusted copy of the ACD10 readme.md, as the ACD3100 is very similar to the ACD10 but some details differ. This library is to use the Aosong ACD3100 CO2 sensor. Besides CO2 ...

Introduction: Internet of things (IoT) compose of million of devices connected together over the internet. IoT plays a vital role now a days and especially in future, the most of the monitoring and ...

Hello, I’m excited to review the ESP32 display modules and HMI touchscreens from Elecrow with sizes ranging from 2.4 to 7.0 inches. For this review, Elecrow kindly provided me with both 3.5-inch and 7 ...

The product we are reviewing today is the “AirGradient ONE” air quality monitor kit which is an updated version of the earlier AirGradient air quality monitor. The device is equipped with sensors from ...